Add support for the HACS repository?

[duftstenen]

Hi gkreitz

First of all, thanks for a great module for HA and AirThings Wave Plus. Works like a charm.

Is it possible to add support for the HACS repository? Like having a hacs.json?

{
    "name": "Airthings Wave Plus",
    "domains": ["sensor", "binary_sensor"],
    "homeassistant": "0.105",
    "render_readme": true
}

Let me hear your thoughts.

Thanks!